Roald Amundsen’s exact route from the top of the Axel Heiberg glacier to the South Pole and back in 1911–1912 has always been somewhat unclear because he never observed his longitude during his southern journey. His approach was simply to steer approximately in a true southerly direction by magnetic compass as long as obstacles did not force him to deviate. The fact that he only knew approximately where he was most of the time on the polar plateau never caused any severe problems for him, but it complicated the search for a depot during the return journey. Based on Amundsen’s bearings of some peaks in the Transantarctic Mountains, in combination with his compass courses adjusted with accurate values for the magnetic declination at the time, this paper elucidates Amundsen’s actual route across the polar plateau in 1911–1912. The main result is that Amundsen must have taken a more easterly route than what previously has been assumed.

This paper discusses an unsourced anecdote in Roland Huntford’s dual biography of Scott and Amundsen and their race for the South Pole; the first edition of the book was published in 1979. During a meeting between the Fram and Terra Nova in the Bay of Whales on 4 February 1911, Lieutenant Victor Campbell allegedly told Roald Amundsen—in order to deceive him—that one of the British motor sledges was “already on terra firma”. In a recent article in Polar Record, Huntford received criticism for (seemingly) having imagined the episode. However, a description of this incident, though with a slight variation compared to Huntford’s version, can be found in Tryggve Gran’s book, Kampen om Sydpolen [The Battle for the South Pole], published in 1961. Hence, one must conclude that Campbell really did try to mislead Amundsen regarding the motor sledges. Nevertheless, it is unlikely that the attempted deception had an impact on Amundsen’s plan for his south polar journey.